Carpet underlay



FIG. 1 is a top plan view of a carpet underlay showing the top surfaceof a first embodiment of my new design;

FIG. 2 is a left end elevational view of the design of FIG. 1, with theright end elevational view being identical thereto;

FIG. 3 is a front elevational view of the carpet underlay of FIG. 1 withthe rear elevational view being identical thereto;

FIG. 4 is a bottom plan view of the carpet underlay of FIG. 1;

FIG. 5 is a top plan view of a carpet underlay showing the top surfaceof a second embodiment of my new design;

FIG. 6 is a left end elevational view of the design of FIG. 5, with theright end elevational view being identical thereto;

FIG. 7 is a front elevational view of the carpet underlay of FIG. 5 withthe rear elevational view being identical thereto; and,

FIG. 8 is a bottom plan view of the carpet underlay of FIG. 5.

The ornamental design for a carpet underlay, as shown and described.